andrea mitchell in denver after a long night there, great job last night, andrea. thank you. >>> turkey's parliament has approved military operations outside its border if the government feels they are necessary. the move comes as turkish troops shell syrian targets for a second day today. turkey retaliated for mortar fire from syria wednesday that reportedly killed at least five civilians and a turkish border town. nato declared the support for turkey after an emergency meeting last night. >>> now for a look at what is trending today. our quick round of "what has you talking" online. big bird was a big winner after mitt romney said he'd cut pbs funding. urged followers to occupy sesame street posting pictures saying look what mitt did to me. it also warns that romney will end bert and ernie's right to a civil union. the debate was the most tweeted about event in u.s. political history. >>> former saved by the bell star is suffering from bipolar disorder. "people" interviewed the women after lark's appearance on tv last spring had fans wondering about her drastic n